#!/usr/bin/env Python
# coding=utf-8

import heapq

print(heapq.__all__)

heap=[]
heapq.heappush(heap,2)
heapq.heappush(heap,22)
heapq.heappush(heap,21)
heapq.heappush(heap,12)
heapq.heappush(heap,24)
print(heap)
